\begin{table}
\centering
\begin{tblr}[         %% tabularray outer open
]                     %% tabularray outer close
{                     %% tabularray inner open
colspec={Q[]Q[]Q[]Q[]},
column{1}={halign=l,},
column{2}={halign=r,},
column{3}={halign=r,},
column{4}={halign=r,},
}                     %% tabularray inner close
\toprule
& Mean & SD & N \\ \midrule %% TinyTableHeader
\textbackslash{}bf Adoption         &        &        &       \\
Any                                  & 0.029  & 0.169  & 65402 \\
Rain Garden                          & 0.011  & 0.102  & 65402 \\
Cistern                              & 0.015  & 0.120  & 65402 \\
Both                                 & 0.004  & 0.066  & 65402 \\
\textbackslash{}bf Peer Adoption    &        &        &       \\
100 Peers                            & 2.311  & 2.619  & 65402 \\
20 Peers                             & 0.481  & 0.868  & 65402 \\
\textbackslash{}bf Peer Eligibility &        &        &       \\
100 Eligible (CS)                    & 89.706 & 15.575 & 65402 \\
100 Eligible (RG)                    & 52.678 & 35.144 & 65402 \\
20 Eligible (CS)                     & 18.584 & 2.926  & 65402 \\
20 Eligible (RG)                     & 10.793 & 8.180  & 65402 \\
\bottomrule
\end{tblr}
\end{table}
